Particle size measurement
United States Patent 3138029

Inventors:
Rich, Theodore A.
Publication Date:
06/23/1964
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Assignee:
GEN ELECTRIC
Primary Class:
73/865.500
Other Classes:
73/28.020
International Classes:
G01N15/02
US Patent References:
2837282Water mixing valve
2960869Arc comparator
2991937Air blender
3010308High expansion ratio condensation nuclei apparatus